I have submitted the scanned copy and the unofficial score report.
I believe the language of the question caused the confusion. Let me clarify
"Do we need to submit official transcript and official GMAT score prior to getting admitted?" - Yes at the time of enrollment
"Do we need to submit official transcript and official GMAT score at the time of application/interview?" - No
Hope this helps and sorry for the confusion.
If you have any other doubts, I am just a post or a PM away